Detachable-wheel hub.



J. V. PUGH.

DETAGHABLE .WHEEL HUB. APPLIOATION FILED 11113.6, 1909.

1,1 29,725., Patented Feb. 23, 1915. I

2 SEEMS-SHEET 1.

J. V. PU'GH.

DETAGHABLE WHEEL HUB.

APPL IOATION FILED MAR. 6, 1909.

Patented Feb. 23, 1915.

2 SHBETSSHEBT 2.

Y axle sleeve and FFEQE.

DETACHABLE-WHEEL HUB.

Specification of Letters Patent.

Patented Feb. 23, 1915;

Application filed March 6, 1909: Serial No. 481,63'4.

T all whom it may concern Be it known that 1, JOHN VERNON PUGH, asubject of the King of Great Britain and Ireland, and residing at Guiting House, Allesley, in the-county of Warwick, 'England,.have invented certain new and useful Improvements in Detachable-Wheel Hubs, of which the following is a specification. i

This invention relates to improvements in det'achablewheels for motor 3 and other vehicles.

The-object of this invention is to provide an improved construction'of permanent hub part for use with a detachable part, which permanent hub part may H apart and withdrawn to g1ve access to the lock nut or the like which secures the -permanent hub part in position on the axle or ingswhen such areused. i I

The invention consists in for'nung the inner permanent hub part in a plurality of pieces which may be secured together, the division being so taken that each of the pieces-may be readily stampedout of thin metal, and also so as to give easy access to the nut ,or the like which secures the hub in positionin the axle o'r axle'sleeveand to the internal bearings. a

The invention also consists in arranging the ball hearings or other axially restricted rotational bearing means which will hereby which an' inafter be called ball bearings, inner permanent hub part as set out above is mounted on its axle or axle sleeve 1n 'such a manner that while the permanenthub part i can be easily drawn off said axle or axle sleeve whether it has an open or closed end, at least one of the ball racesin contact with said permanent hub part or other rotating part is rigidly connected thereto.

The invention also consists in the improved construction of detachable wheels .and details thereof as hereinafter indicated.

' Referring now to the accompanying drawingsi-Figure 1 is a sectional view of a detachable driving wheel with-a divided permanent hub part and having a ring locking device. Figs. 2, 3 and I are sectional views of modified formsof detachable drivingand non-driving wheels.

In carrying this'invention into effect the form shown in Fig. l as applied to a a back .or'driving wheel, the live axle 11 carries at its end a driving star j, or perforated disk. In close proximity to this drivbe readily. taken to disclose the internal bearing disk ball bearings, m and m are provided, the outer races of each being held securely 1n the rotating inner permanent shell,

I; while the inner races are relatively loosely secured, one race being-retained in this recess by means of a washer 15,"1nserted between the disk of the brake drum and a flange 16, on the permanent hub'shll, and I the other raceby means of a flangedfring 13, screwed upon the axle "sleeve 20which flanged ring in position. One ball bearing may be used in the outer part, if desired, but two are preferably used therein order to avoid the increased diameter of the outer shell that would be. necessary if a single bearing were used; the outer hearing or bearings fioat retains the permanent huh I),

and take no end thrust; .all the being taken by the inner bearing. In a modification of the invention (shown in Fig. 2) as applied to a front wheel one of the races of the ballv bearing, m,"near--the outside of the wheel is fixed firmly within the shell of the permanent hub part I), while the other race is mounted loosely over the end of the stub axle Another ball hearing n, at the inner side-of the wheel is S67 curedafirmly within the cap, 2, which may be screwed into theend of the shell of the permanent hub pa rt Z), and" locked thereto by a spring ring 7, or other suitable means, a

washer 11, being interposed. between the ring and a buttress 12, on the shell to prevent any side displacement of the ball race.

The permanenthub part is thenheld in position upon the stub axle by means of a flange ring 13, hearing against one-race of the ballbearing, n, as shown. All "side thrusts are taken by the inner ball bearing. I n removing the permanent hub part the permanent shell b, and the cap 2, are unscrewed from one another which allows the permanent shell tobe removed from the axle with the' ball bearing, m, firmly fixed within it, the other ball bearing a, being retained in the cap, a. y"

In both the constructions shown in Figs. 1 and 2, the permanent hub part is held in position upon the axle, y,'-or axle sleeve 20, by the screw-threaded ring 13, which engages with one race of the inner ball bearing a. ,By this means the space between the with a flange 5, and an end recess in which is placed a ball bearing n, the races of which are mounted between the flange 5, and a fixed sleeve 6. The races are held in posi- ,tion by means of the side flange f, of the brake drum 6,. which is held against the sleeve flange 5, by means of bolts 8, passing through-both and through a fiange 16 on the permanent hub part b.

All these forms of wheels are peculiarly well adapted for construction from stamped thin metal and they'may be arranged to pro vide an oil bath so that the bearings are conti-nually lubricated. An important feature of the construction is that in both the back and front hubs the races ofthe bearings have been arranged to be forced very tightly into the parts of the hubs. that they fit while they may be comparatively loose on the stationary or nonrotating parts.

Although I have referred herein to front wheels and back driving wheels, it must be understood that the invention is applicable in cases where the front wheel takes the drive. If the wheels are applied to chain driven cars, the chain wheel may be clamped 40 to the brake drum or otherwise carried vby the inner hub part. As whenever a driving or braking element is used that element is 1 attached only to the inner permanent hub part the same outer detachable hub part may be used either for a wheel which is or for a wheel which is not to transmit driving or braking forces and in changing the detachable part of a driving or braking wheel none of the braking or driving gear is interfered with so that the change may be effected with great rapidity.

In the construction of a front wheel shown in Fig. 4 I provide two ball bearings m and n one at each end of the stub axle, y, and'between the races on the axle I place a distance piece 22. Thepermanent hub part is formed of a shell 6, and a cap a, this cap holding one of the races of the ball bearing n on the inner side of the hub against the shoulder 21, while the outer race of the bearing on in this case is not rigidly fixed in the inner hub shell I). A nut, 2, on the end of the stub axle 7 holds the permanent hub in position.

Having now described my invention what I claim as new and desire to secure by Let ters Patent is l. A detachable wheel hub comprising in combination an inner permanent hub shell. a cap removably attached to the inner end thereof, bearing means fastened by said cap to said shell, axle means to which said bearing means are attached, and means out wardly of said attached bearing means forming. a slidable supporting connection between said hub shell and said axle means disengageable upon removal of said cap.

2. A detachable wheel hub comprising in combination an inner permanent hub shell, a cap removably attached to the inner end thereof, bearing means fastened by said cap to said shell, a non-rotatable axle to which said bearing means are attached, and further bearing means outwardly of said attached bearing means forming a slidable supporting connection between said hub shell and said axle disengageableupon removal of said cap.

8. A detachable wheel hub comprising in combination an inner permanent hub shell,

bearing means atthe extreme inner end.

thereof, a cap removably attaching said bearing means to said hub shell, a non-rotatable axle, a nut attaching said bearing means to said axle, and further bearing means gripped in the outer end of said hub shell and having a slidable bearing on said axle end outwardly ofsaid nut, whereby a maximum length between bearings for a given hub length is obtained.

4. A detachable wheel hub comprising in combination an inner permanent hub shell,

' a cap removably attached to the inner end thereof, and making a faced fluid-tight joint therewith, bearing means fastened by said cap to said shell, a non-rotatable axle to which said bearing means are attached, and further bearing means attached to the outer end of said axle forming a slidable supporting connection between said hub shell and said axle disengageable 'upon removal of said cap, whereby said hub shell may be formed with a solid end and will more easily retain fiuid lubricant.

A detachable wheel hub comprising in combination an inner permanent hub shell, a cap removably attached to the inner end thereof, a washer gripped between said hub shell and cap and making a faced fluidtight joint with each, bearing means fastened in said cap by said washer, a nonrotatable axle, a nut attaching said bearing means to'said axle, and further bearing means gripped in the outer end of said hub shell and having a slidable bearing upon said axle end outwardly of said nut and forming a supporting connection between said hub shell and said axle disengageable upon removal of saidcap.

{3. In combination in a detachable wheel hub a rotatable axle, non-rotatable axle sleeve, a hub shell, driving means between said axle and said hub shell, a member pro vided with a cylindrical recess at the extreme inner end of said hub shell; a washer between said hub shell and said member, bolts connecting said three last mentioned parts, one-part of an axially restricted rotational bearing means secured 1n .sa1d cylindrical recess by said, washer; a corresponding part-0f Said bearing means encircling said sleeve, an abutment on said sleeve, a mug screwmg onto sa1d sleeve holding said corresponding bearing part against said abutment, an extension of said sleeve outwardly of said ring, parts of further bearing means rigidly secured Within the outer end of said hub shell and corresponding parts of said further bearing means slidably mounted on said sleeve eX- r r, 7 .ionuuruen;

WVitxiessesi I ALBERT BROWN, JOHN RAVEN. 

